Technical information

AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN, EL PASO, TEXAS 79936 • [phone] • FAX [phone]
www.msdignition.com email: [e-mail]
104
T
A
C
H
T
A
C
H
C+
C-
IGN
PTS
M+
M-
HEAVY RED
TO GROUND
NOT USED
WHITE
VARI-CURVE
PN 8983
SWITCHED 12 VOLTS
FROM IGNITION KEY
YELLOW
RED
RED
BLACK
NOT
USED
ORANGE
HEAVY BLACK
PRO POWER COIL
PN 8201
+
BROWN/ORANGE
BROWN/WHITE
VIOLET
TO STARTER
SOLENOID
(FOR START RETARD)
OR
GREEN
VIOLET
12V
ACTIVATION
STAGE 1
NITROUS
SOLENOID
+
TO BATTERY
TO BATTERY
NC MICRO SWITCH
ON SHIFTER FOR
HIGH GEAR
VARI-CURVE, PN 8983
TIMING CURVE EXAMPLES
FOR AN ADVANCE CURVE
First, you must set the mechanical timing to what
will be the maximum amount of timing that the
curve reaches. Install a ZERO module in the “Neg”
jack and 15° module in the “Pos” jack. This will
determine how much advance you want to add.
FOR A RETARD CURVE
Install a ZERO module in the “Pos” jack and a 5°
module in the “Neg” jack. This will determine the
total amount of timing that is removed by the
“End” rpm.